The problems I've encountered primarily arise from the confrontation between 
  the ways seniors use their computers, and the way operating systems are today 
  designed. Most simply put, many of the problems that seniors meet are the result 
  of having too many choices. Why, for instance, is a single-click called for 
  here, but a double-click necessary there? If we've opened a menu with a right-click, 
  why do we have to choose an item on that menu with a left-click? And of course 
  these questions are a sub-group of an even larger question: why do we need multiple 
  methods of doing something? Even though placing an icon in the taskbar from 
  where a single-click is all that's needed to open the program it represents 
  is designed to make life easier, this "ease" comes at a cost of having 
  to decide and/or remember the "best" way of doing something. Even 
  if opening the "Start" menu and scrolling down to open an icon from 
  there may demand more time (and invite more mistakes) than using the taskbar, 
  it offers a certain consistency which can add to a feeling of security.
  
  Word tries to help us when, upon a forced closing of the computer, it tries 
  to save the latest copy of a document on which we've been working. But then, 
  when we once again open the program, the choices it offers us tend to confuse 
  more than they actually help. An elderly user who devotes quite a bit of effort 
  to remembering where his or her document is located, and how to open it, suddenly 
  has to choose the "correct" document from a list of possibilities 
  (and generally, without understanding why this has happened). In addition, the 
  screen is tangibly different than a "regular" opening of the program. 
  Suddenly, part of the screen is taken up with a confusing list, and the area 
  where we might actually type has been truncated. Again, Word is only trying 
  to help. For most of us (whoever "we" are) the distress of losing 
  part of a document we'd been writing dwarfs the inconvenience of a slightly 
  confusing screen. We're thus willing to put up with this somewhat surprising, 
  and not totally helpful, "help". But some of us aren't "most 
  of us". For many of the elderly, unexpected pop-up announcements intended 
  only to prevent the loss of part of a document (a loss that more often than 
  not, they're not aware of), are more threatening than helpful - precisely because 
  they're unexpected.